When do creative people get good ideas? Assume that the survery of 965 inventors give the following information:
Time of Day When Good Ideas Occur
| Time |
# of inventors |
| 6am-12noon |
284 |
| 12noon- 6pm |
133 |
| 6pm-12 midnight |
325 |
| 12 midnight- 6 a.m. |
223 |
Assuming that the time interval includes the left limit and all the times up to but not including the right limit, estimate the probability that an inventor has a good idea during the time interval from 6pm-midnight. Write answer as a fraction in simplest form.